20mm Solid Carbide Roughing End Mill 50mm Effective Length TiAlN Coating, 45° Helix - TECWERK

Take advantage of the combination of TiAlN coating, solid carbide construction and a serrated roughing profile for high material removal with low vibration; order the cutter directly via Metav Werkzeuge or ask the consultants for machining recommendations.

TECWERK roughing end mill DIN 6527 L Type NR‑UNI D20 mm — TiAlN‑coated solid carbide, 4‑flute, long version

A TECWERK roughing end mill DIN 6527 L Type NR‑UNI D20 mm designed for heavy roughing and vibration‑damped material removal in steel, castings and non‑ferrous metals

• Solid carbide, universal fine‑grain TiAlN coated
• 4‑flute roughing profile for vibration‑reduced cuts
• 45° helix and 45° chamfer for reliable chip evacuation
• Cylindrical shank to DIN 6535 HB, long overall length 104 mm

Faster, high‑volume material removal with greater tool life

This long solid carbide roughing cutter combines a TiAlN surface with a specially profiled serrated edge to increase removal rates while prolonging service intervals. The TiAlN coating raises thermal resistance and reduces adhesive wear at elevated temperatures, which is beneficial during continuous roughing cycles. The serrated roughing profile breaks chips into smaller segments, lowering cutting forces and enabling higher feed rates without an undue rise in vibration. For production environments the result is fewer tool changes and improved throughput.

Geometry that stabilises cutting and improves surface consistency

The cutter’s geometry — a 45° helix, 45° chamfer and a positive rake angle — is engineered for efficient chip flow and low radial vibration. A dedicated neck relief reduces interference on deep pockets, while the cylindrical shank to DIN 6535 HB with h6 tolerance ensures concentric clamping and minimal runout in standard toolholders. Together these features support stable cutting at higher axial depths, translating into consistent batch quality and reduced scrap rates for repetitive roughing operations.

Broad material suitability for workshop and small‑batch production

The tool is rated very good for steels, castings and non‑ferrous metals, with conditional suitability for stainless and certain special alloys. The four cutting edges allow aggressive chip removal on general structural steels and aluminium alloys, while the long effective cutting length (50 mm) provides reach for deeper cavities. Where corrosion‑resistant steels or exotic alloys are predominant, consider testing the cutting parameters; the coated carbide substrate still offers improved wear behaviour compared with uncoated grades.

Practical application notes for reliable integration into workflows

Designed as a right‑hand cutter with an overall length of 104 mm and a shank diameter of 20 mm, this long version fits widespread toolholders and is optimised for CNC roughing cycles. The 4‑flute arrangement balances chip volume and radial stability, reducing the need for excessive finishing passes. For best results, pair the tool with secure clamping and monitor feeds to avoid thermal overload in continuous high‑engagement operations. The combination of features supports robust, repeatable machining in small workshops and industrial production alike.

For demanding roughing tasks, choose the TECWERK TiAlN‑coated solid carbide roughing end mill and contact Metav Werkzeuge for tailored machining advice and availability at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical Data

• Article number: 2000866125NW
• Manufacturer: TECWERK
• Product type: Roughing end mill
• Coating: TiAlN
• Material: Solid carbide (VHM)

Dimensions & core data

• Diameter: 20 mm
• Overall length: 104 mm
• Effective cutting length: 50 mm
• Shank diameter: 20 mm
• Number of flutes: 4
• Cutting direction: right‑hand
• Neck relief: 19.5 mm

Special features

• DIN 6527 L, Type NR‑UNI
• 45° helix angle
• 45° chamfer (protective chamfer)
• Positive rake angle for versatile use
• Serrated roughing profile for low‑vibration cuts
• Cylindrical shank to DIN 6535 HB
• Shank tolerance h6
• Material suitability: very good for steel, non‑ferrous metals, castings; conditionally suitable for stainless and special alloys

FAQ

What materials is this cutter best suited for?
The TECWERK roughing end mill (SKU 2000866125NW) is very well suited to steels, castings and non‑ferrous metals; it is conditionally suitable for stainless and some special alloys.

How does the TiAlN coating affect performance?
The TiAlN coating on this solid carbide cutter increases thermal resistance and wear life during sustained roughing, helping to maintain edge integrity and reduce adhesion.

What is the effective cutting reach and how does it help?
The cutter offers an effective cutting length of 50 mm, providing extended reach for deeper pockets and allowing fewer tool changes during multi‑stage roughing operations.

Can this cutter be used in standard CNC toolholders?
Yes, the 20 mm cylindrical shank conforms to DIN 6535 HB with h6 tolerance, ensuring consistent clamping and low runout in common holders.

Why choose a serrated roughing profile for heavy machining?
A serrated roughing profile breaks chips into smaller segments, lowering cutting forces and vibration; this enables higher feed rates and improves process stability in high‑volume stock removal.

Manufacturer / Responsible: NORDWEST Handel AG, Robert‑Schuman‑Straße 17, 44263 Dortmund